Close · 8 hours ago
Frontend Engineer - React (USA only - 100% Remote)
United States
Full-time
Remote
Senior Level, Lead/Staff
$140K/yr - $210K/yr
5+ years expClose is a CRM company that has been helping teams sell more efficiently since 2013. They are seeking a Senior Frontend Engineer to join their engineering team, focusing on building and launching user-facing features and enhancing the web app's performance and user experience.
CRMDatabaseEmailSaaSSalesSales AutomationSales EnablementSmall and Medium BusinessesSMSVoIP
Responsibilities
Conceiving, designing, building, and launching new user-facing features
Implementing new AI features to turbocharge our customers’ daily tasks
Working with Twilio's API, WebSockets, and WebRTC to improve our calling and SMS features
Building user-facing analytics features that provide actionable insights based on sales activity data
Enhancing our web app with real-time updates powered by GraphQL Subscriptions
Improving real-time collaboration user experience
Leveraging the latest AI LLMs from providers like OpenAI, Claude Code, and AssemblyAI
Expanding our frontend GraphQL usage
Extending our React component library
Qualification
Required
5+ years experience building modern frontend single page applications in JavaScript, HTML, and CSS, with at least 3 years of that experience using React for Senior 1 & 2 level candidates
8+ years of experience for Staff level candidates
Significant experience designing, debugging, and optimizing frontend applications to make them fast and reliable
Significant experience with REST APIs and thoroughly understand HTTP requests
Experience participating in code reviews and providing overall code quality suggestions to help maintain the structure and quality of the codebase
Great product sense and able to think through user experience issues before diving into the code, and exhibit a love for great UI
Care about the craftsmanship of the code and systems produced
Located in the USA (ET, CT, MT, PT time zones)
Preferred
Experience implementing real-time (e.g. websockets, polling, etc.) web apps
Experience working with GraphQL endpoints
Utilized models from AI companies like OpenAI, Anthropic and AssemblyAI in a production web app
An eye for design and experience with Figma, Sketch, Abstract, Photoshop, or similar
Led small project teams building and launching features
Contributed open source code (core or plugins) for a popular frontend framework such as React, Vue, or Angular
Built B2B SaaS products
Experience with sales or sales tools
Benefits
Competitive compensation including an organization-wide goal-based bonus
Paid Time Off: 4+ weeks of PTO upon joining + 2 extra days of PTO for each year you're with the company.
Six paid US holidays, including team-wide Winter and Summer breaks
Paid Parental Leave for primary and secondary caregivers
Sabbatical: After 5 years with the team, you’re eligible for a 1 month paid sabbatical
Healthcare (US residents): Medical, Dental, Vision with HSA option (US residents), Dependent care FSA (US residents)
401k (US residents): We match 6% contributions with immediate vesting
Company
Close
A CRM for startups and small businesses with built-in sales communication tools.
51-200 employees
H1B Sponsorship
Close has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2022 (2)
2021 (1)
Funding
Current Stage
Growth StageTotal Funding
unknown2013-01-01Seed
2011-03-22Seed
Leadership Team
Steli Efti
CEO
Nick Persico
Product
Recent News
Growth Business UK
2025-06-11
GlobeNewswire News Room
2025-03-19
Company data provided by crunchbase